Jefferson, OK Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Jefferson's primary NOAA station, JEFFERSON 3SE.
The climate verdict for Jefferson
Jefferson, Oklahoma has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 58°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 58°F
- yearly average temperature, NOAA normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 33.9"
- annual precipitation
- 185 days
- frost-free days per growing season
Jefferson: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00344573 · Jefferson, OK 58°F mean · 33.9" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 58°F
- RANK-UPPER #4,665
- PHOTO-FINISH ≈ Moab
- PRCP-MID 33.9"
- SWING-WIDE 47°F
- COMF-TOP 80/100
- LOAD-HEAT 4,409 HDD
- STN-1 USC00344573
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Moab, UT (+ 0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every OK station list.
- Jefferson (this station) 58°F
- Hot Mutual, OK 58°F
- Near Moab, UT 58°F
- Cold St Louis, MO 57°F
- Near Anthony, KS 57°F
Climate Living Index · Jefferson
Jefferson: 53/100 · grade D
Jefferson publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Jefferson, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 33.9 in · 1.1 from 35 in | 94/100 · A |
| Annual temperature balance | 57.5°F · 10.0° from 67.5°F | 68/100 · C |
| Frost-free season | 185 days/year | 54/100 · D |
| Normal heat + freeze calendar | 203 calendar days | 12/100 · F |
Jefferson · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Jefferson is a temperate Köppen climate: Cfa
Coldest-month mean 33.9°F and warmest-month mean 81.2°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 81.2°F
- Coldest month
- 33.9°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Jefferson sits across the climate record
Three NOAA fields for Jefferson's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 68th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 46th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 69th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Jefferson compares across U.S. station-mapped locations
Jefferson's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 48°F (9°C) | 20°F (-7°C) | 34°F (1°C) | 1.0" | 27.1 | 0.0 |
| February | 52°F (11°C) | 23°F (-5°C) | 38°F (3°C) | 1.2" | 21.0 | 0.0 |
| March | 62°F (17°C) | 32°F (0°C) | 47°F (8°C) | 2.3" | 14.1 | 0.2 |
| April | 71°F (22°C) | 41°F (5°C) | 56°F (13°C) | 3.7" | 4.4 | 0.5 |
| May | 80°F (27°C) | 53°F (12°C) | 67°F (19°C) | 4.8" | 0.2 | 4.8 |
| June | 90°F (32°C) | 63°F (17°C) | 76°F (25°C) | 4.5" | 0.0 | 17.0 |
| July | 95°F (35°C) | 68°F (20°C) | 81°F (27°C) | 3.8" | 0.0 | 25.3 |
| August | 94°F (34°C) | 66°F (19°C) | 80°F (27°C) | 3.7" | 0.0 | 23.4 |
| September | 85°F (30°C) | 57°F (14°C) | 71°F (22°C) | 2.7" | 0.2 | 10.7 |
| October | 74°F (23°C) | 44°F (7°C) | 59°F (15°C) | 3.1" | 3.0 | 1.6 |
| November | 60°F (16°C) | 32°F (0°C) | 46°F (8°C) | 1.7" | 14.4 | 0.0 |
| December | 49°F (9°C) | 23°F (-5°C) | 36°F (2°C) | 1.4" | 25.4 | 0.0 |
The year, day by day
Jefferson works both ends of the calendar. Normal highs climb to 95°F by July 24 and hold at or above 90°F on 78 dates, then normal lows drop to freezing or below on 125 dates, bottoming at 20°F around January 17.
When the heat sits
Normal highs reach 90°F from June 17 through September 2, covering 78 dates. The broader mild season, normal highs of 70°F or more, runs April 13 to October 24.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into March 17, then returns to freezing around November 14, covering 125 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is May 22, when 31% of years recorded at least a hundredth of an inch. The driest is January 8 at 11%. Summed across the calendar, that is about 73 wet dates a year.
The widest day
March 24 carries the biggest normal gap between afternoon and dawn, 31°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Jefferson.
Where Jefferson Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 78 days a year, more than four out of five ranked stations record.
Jefferson earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
3.5 days with precipitation
4.8 days with precipitation
5.7 days with precipitation
6.8 days with precipitation
9.5 days with precipitation
8.0 days with precipitation
6.7 days with precipitation
7.3 days with precipitation
5.5 days with precipitation
6.4 days with precipitation
3.6 days with precipitation
4.7 days with precipitation
Jefferson runs a summer-peaked wet season
36% of Jefferson's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is May at 4.8", on a wide 47.3°F gap between its warmest and coldest month. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: May, June, July, taking 39% of the annual total between them.
- Driest month: January at 1.0".
- Winter share: 11% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
When it rains in Jefferson, it arrives in quantity
33.9" of precipitation falls across only about 73 wet days here, averaging 0.47 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 73 a year, 20% of all days
- Average depth per wet day
- 0.47 inches
- Most wet days
- May, about 10
- Fewest wet days
- January, about 4
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
October 20
50% probability date
Last Spring Freeze
April 18
50% probability date
Growing Season
185 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,409
Higher = more heating needed
Cooling Degree Days
1,705
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside OK closest to Jefferson on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (58°F here).
- Abilene, KS 58°F · 0.0°F off
- Ashland, VA 58°F · 0.0°F off
- Bowling Green, KY 58°F · 0.0°F off
- Branson, MO 58°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (33.9" here), excluding temperature-peer places.
- Chilton, WI 33.9" · 0.0" off
- Boulder, CO 33.9" · 0.0" off
- Mankato, MN 33.9" · 0.0" off
- Port Washington, WI 33.9" · 0.0" off
Data-derived climate profile
How Jefferson's climate pattern fits together
heating led · moderate · mid swing
Jefferson's energy balance leans toward cold weather: 4,409 annual heating degree days against 1,705 for cooling. Its 47.3°F seasonal range still makes the monthly rows more useful than the annual average alone.
Jefferson's frost-free season lasts about 185 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Jefferson's middle-range seasonal profile. The measured spread is 47.3°F. The annual average is 58°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Jefferson's 33.9 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Jefferson's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Jefferson, not an official NOAA class or a year-ahead forecast.
Questions about Jefferson's climate
How much rain does Jefferson get? ▼
How many days above 90°F does Jefferson get? ▼
How much energy does heating and cooling require in Jefferson? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Jefferson's primary station: JEFFERSON 3SE (USC00344573). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 4037750). Match rule for Jefferson: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Jefferson comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.